Articulated Arm for Vehicle Container Collection
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Solution Overview
Problem
Existing container collection and emptying systems with articulated arms are complex, difficult to control, and expensive due to the need for multiple actuators and complex mechanical configurations, often resulting in translation and rotation errors when placing containers on vehicles.
Innovation Solution
A vehicle-mounted articulated arm system with a vertical column and two segments forming an L-shape, actuated by hydraulic or electric means, allowing for easy access and gripping of containers on either side with minimal articulations, and featuring a second articulation to maintain the gripping device's orientation and optional telescopic extension for increased reach.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an articulated arm with rotating base and multiple articulations is used to access both sides of the vehicle, then the ability to collect containers from either side is improved, but the device complexity and number of actuators increases to 5 actuators
Solution Approach 1:
The articulated arm is divided into multiple segments (first segment, second segment, third segment) that can be independently actuated. Each segment performs a specific function: the first segment rotates to access either side, the second segment positions the gripping device, and the third segment provides telescopic extension. This segmentation allows the system to achieve complex motion with fewer actuators per segment compared to traditional multi-actuator joints.
Solution Approach 2:
The patent introduces a telescopic dimension with the third segment that extends in the radial direction, adding a dimensional degree of freedom that allows the arm to reach containers at various distances without requiring additional rotational articulations. This dimensional change reduces the need for complex multi-axis positioning systems.
2Manufacturing precision
If multiple articulations and telescopic segments are used to precisely position the gripping device, then the positioning capability is improved, but the difficulty of control and manufacturing increases
Solution Approach 1:
The articulated arm employs dynamic actuation where each segment can be independently controlled to achieve the desired end position. The system uses dynamic positioning control where the first segment rotates to the appropriate angle, the second segment extends to the required length, and the third segment provides fine-adjustment telescopic extension. This dynamic approach allows precise positioning while maintaining manufacturing simplicity through standardized actuator components.
3Adaptability or versatility
If a rotating base with vertical axis is used to access opposite sides of the vehicle, then the versatility is improved, but the mechanical complexity and cost increases
Solution Approach 1:
Instead of using a traditional rotating base with vertical axis that requires multiple horizontal and vertical articulations, the patent inverts the approach by using a first segment that rotates on a horizontal axis to access either side, combined with a telescopic third segment that extends radially. This inverted configuration achieves the same versatility with simpler mechanical components and fewer actuators.
Data Source
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AI summary
The present invention relates to a device provided with an articulated arm actuated by means of an electrically or electronically controlled actuating system. Said device is able to collect, lift and empty containers as a result of a working cycle which includes at least the following retracted, extended, gripping, lifting and emptying positions, and said device is able to collect containers located on either side of a vehicle, said articulated arm having a stationary vertical column connected to the vehicle, a first segment perpendicular to the direction of advancement of the vehicle and articulated with respect to the vertical column by means of a first articulation, and a second horizontal segment perpendicular to the first segment, with a gripping device at the end thereof.